CPW-Fed Circular Fractal Slot Antenna Design for Dual-Band Applications

Chang, Dau‐Chyrh; Zeng, Bing-Hao; Liu, Ji‐Chyun

doi:10.1109/tap.2008.2007279

Cited by 49 publications

(32 citation statements)

References 25 publications

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“…Various techniques have been introduced in an attempt to reduce the footprint of the conventional patch antenna. Some of the most promising methods use periodicity to achieve that effect, either by using fractal designs or composite electric‐magnetic‐electric (EME) metal strips .…”

Section: Introductionmentioning

confidence: 99%

UWB antenna size reduction methods using fractal, matrix, and serrated structures

Bounif

Desmarais

Nabki

et al. 2014

Micro & Optical Tech Letters

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Four ultrawideband monopole antennas exploiting periodicity to reduce their size are presented. Experimental results are also discussed for these antennas. The first antenna uses a fractal topology based on a hexagonal pattern. It achieves a bandwidth of 8.85 GHz from 3.65 to 12.5 GHz with a 14 × 16.52 mm2 footprint. The second antenna uses an electric‐magnetic‐electric matrix and provides a 7 GHz bandwidth from 3.5 to 10.5 GHz with a 14 × 15.9 mm2 footprint. Two antennas based on a serrated structure which reduces the surface up to 15% are also presented with dimensions of 15 × 16.3 mm2: the first one covers a bandwidth of 3.5 to 11.73 GHz, whereas the second adds a notch between 5.15 to 5.825 GHz to reject the wireless LAN band. All these antennas can be incorporated into very small communication modules while maintaining excellent performances with a return loss below −10 dB and with a good multidirectional radiation pattern. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:2038–2044, 2014

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Section: Introductionmentioning

confidence: 99%

UWB antenna size reduction methods using fractal, matrix, and serrated structures

Bounif

Desmarais

Nabki

et al. 2014

Micro & Optical Tech Letters

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“…Using a self‐similar iteration design, a practical fractal antenna could be developed for multiband and broadband applications . The CPW‐fed circular fractal slot antenna was proposed for WLAN dual‐band application . A rhombic patch monopole antenna with modified Minkowski fractal geometry was provided for UMTS, WLAN, and mobile WiMAX application .…”

Section: Introductionmentioning

confidence: 99%

Dual-band circularly polarized aperture-coupled stack antenna with fractal patch for WLAN and WiMAX applications

Hung

Liu

Wei

et al. 2013

Int J RF and Microwave Comp Aid Eng

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This article presents a novel circular polarized (CP) aperture coupled stack antenna for wireless local area network and worldwide interoperability for microwave access dual-band systems. The compact stack antenna consisted of square fractal patch, aperture couple, feed line and the perturbation. The square patch is constructed with the complementary Minkowski-island-based fractal geometry. By way of adjusting the relevant parameters, we can obtain the dual-band responses at 3.5 and 5.25 GHz respectively. The CP of each band are presented. The measured 10 dB return loss impedance bandwidth are 270 MHz (7.5%) for 3.5 GHz band and 450 MHz (8.6%) for 5.25 GHz band. The 3 dB axial ratio bandwidths for each bands are 1.4 and 0.76%, the polarization of radiation patterns are both left-hand CP, and the antenna power gain are 2.84-3.1 and 0.16-2.2, dBic respectively. The proposed antenna is successfully simulated and measured with frequency responses, radiation patterns and current distributions. V C 2013 Wiley Periodicals, Inc. Int J RF and Microwave CAE 24:130-138, 2014.

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“…Recently, coplanar waveguide (CPW) antenna has received considerable attention owing to its preferable characteristics, such as easy fabrication, low profile and wide bandwidths. For dual-band applications, several CPW-fed antennas have been developed [1][2][3][4][5][6][7][8]. The CPW monopole antennas present the two operating frequencies with a frequency ratio (FR) about 1.37 (2.45 GHz/1.781 GHz) [1], 2.08 (5.0 GHz/2.4 GHz) [2] and 2.79 (5.45 GHz/1.95 GHz) [3].…”

Section: Introductionmentioning

confidence: 99%

“…The CPW monopole antennas present the two operating frequencies with a frequency ratio (FR) about 1.37 (2.45 GHz/1.781 GHz) [1], 2.08 (5.0 GHz/2.4 GHz) [2] and 2.79 (5.45 GHz/1.95 GHz) [3]. And the CPW slot antennas exhibit FR about 1.34 (2.475 GHz/1.845 GHz) [4], 1.87 (1.84 GHz/0.98 GHz) and 2.25 (5.35 GHz/2.38 GHz) [5], 1.36 (3.4 GHz/2.5 GHz) [6], 1.375 (2.2 GHz/1.6 GHz) [7] and 1.286 (1.98 GHz/1.54 GHz) [8] individually.…”

Section: Introductionmentioning

confidence: 99%

“…The circularly polarized (CP) antennas are required to implement polarization diversity, in order to prevent degradation due to multipath fading in the propagation environments. Recently, by using the selfsimilar iterative configuration of the fractal slot antenna, the dual-band and CP operations were obtained [5]. The CP operation was realized by taking a ground plane embedded with an inverted-L slit [6].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Compact Size and Small Frequency Ratio CPW-Fed Circular Slot Antenna for GPS/Wlan Dual-Band and Circular Polarizations

Wei¹,

Liu²,

Hung³

et al. 2011

PIER C

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This paper presents a novel dual-band circularly polarized CPW-fed circular slot antenna with two open-ground rings. The proposed antenna is constructed with two opened-ground rings facing in opposite directions and embedded in the circular slot and the enhanced feed strip of CPW. By way of adjusting the relevant parameters, we can obtain the dualband at 1.57 GHz and 2.46 GHz respectively. A smaller frequency ratio of 1.56 is presented. The measured −10 dB return loss impedance bandwidth are 380 MHz (24.68%) for 1.57 GHz band and 210 MHz (8.33%) for 2.46 GHz band. The measured −3 dB axial ratio bandwidth for 1.57 GHz and 2.46 GHz bands are 13.38% and 8.13%, the polarization of radiation patterns are RHCP and LHCP for each band and the antenna gain are 3.72 and 3.21 dBic respectively.

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CPW-Fed Circular Fractal Slot Antenna Design for Dual-Band Applications

Cited by 49 publications

References 25 publications

UWB antenna size reduction methods using fractal, matrix, and serrated structures

UWB antenna size reduction methods using fractal, matrix, and serrated structures

Dual-band circularly polarized aperture-coupled stack antenna with fractal patch for WLAN and WiMAX applications

A Compact Size and Small Frequency Ratio CPW-Fed Circular Slot Antenna for GPS/Wlan Dual-Band and Circular Polarizations

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